3D model for prediction of flow profiles around bridges

Computational fluid dynamics models have become well established as tools for simulating free surface flow over a wide range of structures. This study is an assessment and comparison of the performance of a commercially available three-dimensional numerical software, which solves the Reynolds-averag...

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Bibliographic Details
Published in:	Journal of hydraulic research 2010-08, Vol.48 (4), p.521-525
Main Authors:	Kocaman, Selahattin, Seckin, Galip, Erduran, Kutsi S.
Format:	Article
Language:	eng
Subjects:	Assessments Bridge Bridges (structures) compound channel Computational fluid dynamics Computer programs Earth sciences Earth, ocean, space Engineering and environment geology. Geothermics Engineering geology Exact sciences and technology FLOW-3D free surface profile Hydrology Hydrology. Hydrogeology Mathematical analysis Mathematical models Navier-Stokes equations numerical modelling Three dimensional
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Summary:	Computational fluid dynamics models have become well established as tools for simulating free surface flow over a wide range of structures. This study is an assessment and comparison of the performance of a commercially available three-dimensional numerical software, which solves the Reynolds-averaged Navier-Stokes equations, to predict the free surface profiles from up- to downstream of four different bridge types with and without piers in a compound channel. The model results were compared with the available experimental data. Comparisons indicate that the model provides a reasonably good description of free surface profiles under both gradually and rapidly varied flow conditions in the bridge vicinity, respectively.
ISSN:	0022-1686 1814-2079